'''
Function:
    百度网盘模拟登录
        --PC端: https://wappass.baidu.com/wp/api/login
        --移动端暂不支持
Author:
    Charles
微信公众号:
    Charles的皮卡丘
GitHub:
    https://github.com/CharlesPikachu
更新日期:
    2020-03-10
'''
import os
import re
import rsa
import time
import json
import requests
from ..utils.misc import *


'''
Function:
    百度网盘模拟登录
Detail:
    -login:
        Input:
            --username: 用户名
            --password: 密码
            --mode: mobile/pc
            --crackvcFunc: 若提供验证码接口, 则利用该接口来实现验证码的自动识别
            --proxies: 为requests.Session()设置代理
        Return:
            --infos_return: 用户名等信息
            --session: 登录后的requests.Session()
'''
class baidupan():
    def __init__(self, **kwargs):
        self.info = 'baidupan'
        self.cur_path = os.getcwd()
        self.session = requests.Session()
    '''登录函数'''
    def login(self, username, password, mode='pc', crackvcFunc=None, **kwargs):
        # 设置代理
        self.session.proxies.update(kwargs.get('proxies', {}))
        # 移动端接口
        if mode == 'mobile':
            raise NotImplementedError
        # PC端接口
        elif mode == 'pc':
            self.__initializePC()
            # 访问home_url, 初始化cookies
            self.session.get(self.home_url)
            # 获得servertime
            servertime = self.__getServertime()
            # 获得publickkey
            publickkey_modulus, publickkey_exponent = self.__getPublicKey()
            # 获得traceid
            traceid = self.__getTraceId()
            # 加密password
            password = self.__unpaddingRSA(publickkey_modulus, publickkey_exponent, str(password)+str(servertime))
            # 获得时间戳
            timestamp = str(int(time.time()/1000)) + '773_357'
            # 模拟登录
            is_need_captcha = False
            is_need_phone_email_verify = False
            captcha = ''
            codestring = ''
            goto_url = ''
            while True:
                # --需要图片验证码
                if is_need_captcha:
                    res = self.session.get(self.genimage_url+codestring)
                    saveImage(res.content, os.path.join(self.cur_path, 'captcha.jpg'))
                    if crackvcFunc is None:
                        showImage(os.path.join(self.cur_path, 'captcha.jpg'))
                        captcha = input('Input the captcha:')
                    else:
                        captcha = crackvcFunc(os.path.join(self.cur_path, 'captcha.jpg'))
                    removeImage(os.path.join(self.cur_path, 'captcha.jpg'))
                # --需要验证手机/邮箱
                if is_need_phone_email_verify:
                    res_json = self.__verifyPhoneEmail(goto_url)
                    self.session.get(res_json['data']['u'])
                # --不需要验证手机/邮箱, 直接构造并发送登录请求
                if not is_need_phone_email_verify:
                    data = {
                            'username': username,
                            'password': password,
                            'verifycode': captcha,
                            'vcodestr': codestring,
                            'isphone': '0',
                            'loginmerge': '1',
                            'action': 'login',
                            'uid': timestamp,
                            'skin': 'default_v2',
                            'connect': '0',
                            'dv': 'tk0.0095975573224773571583831604201@aadbAkqLI24oCwthDIxGB4p0K-2RKwxRuKp-sZxYJmRY9V2ZGq__rd0tmpV6wAk2zomRZ9DBLI24oCwthDIxGB4p0K-2RKwx-sntgOKCTp-9YAk2Y9SR~9-6QA4ChD1sH0BwGKwhDB4T~94xGMv4-MQsiM3CTCmmOEmuldwJ5hudj9HRYAkFRBdbsvLRAVqRoDBWp-Bwp-9Y9V0Qp-9wp-2wok9z9-2Z9k0Y9k2_jdVOrClMr9cAYxQsQMju348JrBjuZxgAY~wP3CXJ3XjJn0_~db9mRRAk2w9D1L9VFlAk2w9-uLokulAk2w9-uL9DB-pSRz9V0_',
                            'getpassUrl': '/passport/getpass?clientfrom=&adapter=0&ssid=&from=&authsite=&bd_page_type=&uid="+timestamp+"&pu=&tpl=wimn&u=https://m.baidu.com/usrprofile%3Fuid%3D"+timestamp+"%23logined&type=&bdcm=060d5ffd462309f7e5529822720e0cf3d7cad665&tn=&regist_mode=&login_share_strategy=&subpro=wimn&skin=default_v2&client=&connect=0&smsLoginLink=1&loginLink=&bindToSmsLogin=&overseas=&is_voice_sms=&subpro=wimn&hideSLogin=&forcesetpwd=&regdomestic=',
                            'mobilenum': 'undefined',
                            'servertime': servertime,
                            'gid': 'DA7C3AE-AF1F-48C0-AF9C-F1882CA37CD5',
                            'logLoginType': 'wap_loginTouch',
                            'FP_UID': '0b58c206c9faa8349576163341ef1321',
                            'traceid': traceid
                        }
                    res = self.session.post(self.login_url, headers=self.login_headers, data=data)
                    res_json = res.json()
                # --登录成功
                if res_json['errInfo'].get('no') in ['0']:
                    print('[INFO]: Account -> %s, login successfully...' % username)
                    infos_return = {'username': username}
                    infos_return.update(res_json)
                    return infos_return, self.session
                # --需要验证码
                elif res_json['errInfo'].get('no') in ['500002']:
                    codestring = res_json['data'].get('codeString')
                    is_need_captcha = True
                # --需要验证手机/邮箱
                elif res_json['errInfo'].get('no') in ['400101', '400023']:
                    goto_url = res_json.get('data').get('gotoUrl')
                    is_need_phone_email_verify = True
                    is_need_captcha = False
                # --账户或密码错误
                elif res_json['errInfo'].get('no') in ['400010']:
                    raise RuntimeError('Account -> %s, fail to login, username or password error...' % username)
                # --其他原因
                else:
                    raise RuntimeError(res_json['errInfo'].get('msg'))
        # mode输入有误
        else:
            raise ValueError('Unsupport argument in baidupan.login -> mode %s, expect <mobile> or <pc>...' % mode)
    '''手机/邮箱验证'''
    def __verifyPhoneEmail(self, goto_url):
        # 提取必要的数据
        res = self.session.get(goto_url)
        res.encoding = 'utf-8'
        raw_phone = re.search(r'<p class="verify-type-li-tiptop">(.*?)</p>\s+<p class="verify-type-li-tipbottom">通过手机验证码验证身份</p>', res.text)
        raw_email = re.search(r'<p class="verify-type-li-tiptop">(.*?)</p>\s+<p class="verify-type-li-tipbottom">通过邮箱验证码验证身份</p>', res.text)
        raw_token = re.search(r'token=([^&]+).*?&u=([^&]+)&', goto_url)
        phone = raw_phone.group(1) if raw_phone else None
        email = raw_phone.group(1) if raw_email else None
        token, u = raw_token.group(1), raw_token.group(2)
        # 选择验证方式
        verify_type = input('Your account has to be verified by using binded phone or email, please choose phone(enter 0, by default) or email(enter 1):')
        verify_type = 'email' if verify_type == '1' else 'mobile'
        # 发送验证码
        url = 'https://wappass.baidu.com/passport/authwidget?action=send&tpl=&type={}&token={}&from=&skin=&clientfrom=&adapter=2&updatessn=&bindToSmsLogin=&upsms=&finance='.format(verify_type, token)
        res = self.session.get(url)
        # 输入验证码
        vcode = input('Please enter the verify code you have accepted:')
        # 验证验证码
        headers = {
                    'Connection': 'keep-alive',
                    'Host': 'wappass.baidu.com',
                    'Upgrade-Insecure-Requests': '1',
                    'Pragma': 'no-cache'
                }
        timestamp = str(int(time.time())) + '773_357994'
        url = 'https://wappass.baidu.com/passport/authwidget?v={}&vcode={}&token={}&u={}&action=check&type={}&tpl=&skin=&clientfrom=&adapter=2&updatessn=&bindToSmsLogin=&isnew=&card_no=&finance=&callback=jsonp1'.format(timestamp, vcode, token, u, verify_type)
        res = self.session.get(url, headers=headers)
        res_json = res.text[len("jsonp1("): -1].strip()
        res_json = json.loads(res_json)
        return res_json
    '''unpadding RSA'''
    def __unpaddingRSA(self, publickkey_modulus, publickkey_exponent, message):
        def padMSG(message, target_length):
            message = message[::-1]
            max_msglength = target_length - 11
            msglength = len(message)
            padding = b''
            padding_length = target_length - msglength - 3
            for i in range(padding_length):
                padding += b'\x00'
            return b''.join([b'\x00\x00', padding, b'\x00', message])
        def encrypt(message, pubkey):
            keylength = rsa.common.byte_size(pubkey.n)
            padded = padMSG(message, keylength)
            payload = rsa.transform.bytes2int(padded)
            encrypted = rsa.core.encrypt_int(payload, pubkey.e, pubkey.n)
            block = rsa.transform.int2bytes(encrypted, keylength)
            return block
        m = int(publickkey_modulus, 16)
        e = int(publickkey_exponent, 16)
        rsa_pubkey = rsa.PublicKey(m, e)
        crypto = encrypt(message.encode('utf-8'), rsa_pubkey)
        return crypto.hex()
    '''获得servertime'''
    def __getServertime(self):
        res = self.session.get(self.servertime_url)
        servertime = res.json().get('time')
        return servertime
    '''获得publickey'''
    def __getPublicKey(self):
        res = self.session.get(self.publickkey_url)
        publickkey_modulus = re.findall(r',rsa:\"(.*?)\",error:', res.text)
        publickkey_modulus = publickkey_modulus[0] if len(publickkey_modulus) > 0 else "B3C61EBBA4659C4CE3639287EE871F1F48F7930EA977991C7AFE3CC442FEA49643212E7D570C853F368065CC57A2014666DA8AE7D493FD47D171C0D894EEE3ED7F99F6798B7FFD7B5873227038AD23E3197631A8CB642213B9F27D4901AB0D92BFA27542AE890855396ED92775255C977F5C302F1E7ED4B1E369C12CB6B1822F"
        publickkey_exponent = '10001'
        return publickkey_modulus, publickkey_exponent
    '''获得traceid'''
    def __getTraceId(self):
        res = self.session.get(self.traceid_url)
        traceid = res.headers.get('Trace-Id')
        return traceid
    '''初始化PC端'''
    def __initializePC(self):
        self.headers = {
                        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.132 Safari/537.36',
                        'Referer': 'https://www.baidu.com/'
                        }
        self.login_headers = {
                                'Content-Type': 'application/x-www-form-urlencoded',
                                'Accept': 'application/json',
                                'Referer': 'https://wappass.baidu.com/',
                                'X-Requested-With': 'XMLHttpRequest',
                                'Connection': 'keep-alive'
                            }
        self.home_url = 'https://www.baidu.com/'
        self.servertime_url = 'https://wappass.baidu.com/wp/api/security/antireplaytoken'
        self.publickkey_url = 'https://wappass.baidu.com/static/touch/js/login_d9bffc9.js'
        self.traceid_url = 'https://wappass.baidu.com/'
        self.login_url = 'https://wappass.baidu.com/wp/api/login'
        self.genimage_url = 'https://wappass.baidu.com/cgi-bin/genimage?'
        self.session.headers.update(self.headers)
    '''初始化移动端'''
    def __initializeMobile(self):
        pass


'''test'''
if __name__ == '__main__':
    baidupan().login('', '')